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Date: Tue, 06 Dec 2022 00:48:33 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
martin.petersen@...cle.com, jejb@...ux.ibm.com,
andersson@...nel.org, vkoul@...nel.org
CC: quic_cang@...cinc.com, quic_asutoshd@...cinc.com,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-phy@...ts.infradead.org, linux-scsi@...r.kernel.org,
ahalaney@...hat.com, abel.vesa@...aro.org, alim.akhtar@...sung.com,
avri.altman@....com, bvanassche@....org
Subject: Re: [PATCH v4 03/23] phy: qcom-qmp-ufs: Move register settings to qmp_phy_cfg_tbls struct
On 1 December 2022 20:43:08 GMT+03:00, Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org> wrote:
>As done for Qcom PCIe PHY driver, let's move the register settings to the
>common qmp_phy_cfg_tbls struct. This helps in adding any additional PHY
>settings needed for functionalities like HS-G4 in the future by adding one
>more instance of the qmp_phy_cfg_tbls.
>
>Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>---
> drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 196 ++++++++++++++----------
> 1 file changed, 113 insertions(+), 83 deletions(-)
>
>diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>index 35b77cd79e57..516027e356f0 100644
>--- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>+++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>@@ -527,21 +527,26 @@ struct qmp_ufs_offsets {
> u16 rx2;
> };
>
>+struct qmp_phy_cfg_tbls {
>+ /* Init sequence for PHY blocks - serdes, tx, rx, pcs */
>+ const struct qmp_phy_init_tbl *serdes;
>+ int serdes_num;
>+ const struct qmp_phy_init_tbl *tx;
>+ int tx_num;
>+ const struct qmp_phy_init_tbl *rx;
>+ int rx_num;
>+ const struct qmp_phy_init_tbl *pcs;
>+ int pcs_num;
>+};
>+
> /* struct qmp_phy_cfg - per-PHY initialization config */
> struct qmp_phy_cfg {
> int lanes;
>
> const struct qmp_ufs_offsets *offsets;
>
>- /* Init sequence for PHY blocks - serdes, tx, rx, pcs */
>- const struct qmp_phy_init_tbl *serdes_tbl;
>- int serdes_tbl_num;
>- const struct qmp_phy_init_tbl *tx_tbl;
>- int tx_tbl_num;
>- const struct qmp_phy_init_tbl *rx_tbl;
>- int rx_tbl_num;
>- const struct qmp_phy_init_tbl *pcs_tbl;
>- int pcs_tbl_num;
>+ /* Main init sequence for PHY blocks - serdes, tx, rx, pcs */
>+ const struct qmp_phy_cfg_tbls tbls;
>
> /* clock ids to be requested */
> const char * const *clk_list;
>@@ -632,12 +637,14 @@ static const struct qmp_ufs_offsets qmp_ufs_offsets_v5 = {
> static const struct qmp_phy_cfg msm8996_ufsphy_cfg = {
> .lanes = 1,
>
>- .serdes_tbl = msm8996_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(msm8996_ufsphy_serdes),
>- .tx_tbl = msm8996_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(msm8996_ufsphy_tx),
>- .rx_tbl = msm8996_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(msm8996_ufsphy_rx),
>+ .tbls = {
>+ .serdes = msm8996_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(msm8996_ufsphy_serdes),
>+ .tx = msm8996_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(msm8996_ufsphy_tx),
>+ .rx = msm8996_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(msm8996_ufsphy_rx),
>+ },
>
> .clk_list = msm8996_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(msm8996_ufs_phy_clk_l),
>@@ -655,14 +662,16 @@ static const struct qmp_phy_cfg sc8280xp_ufsphy_cfg = {
>
> .offsets = &qmp_ufs_offsets_v5,
>
>- .serdes_tbl = sm8350_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(sm8350_ufsphy_serdes),
>- .tx_tbl = sm8350_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(sm8350_ufsphy_tx),
>- .rx_tbl = sm8350_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(sm8350_ufsphy_rx),
>- .pcs_tbl = sm8350_ufsphy_pcs,
>- .pcs_tbl_num = ARRAY_SIZE(sm8350_ufsphy_pcs),
>+ .tbls = {
>+ .serdes = sm8350_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sm8350_ufsphy_serdes),
>+ .tx = sm8350_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sm8350_ufsphy_tx),
>+ .rx = sm8350_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sm8350_ufsphy_rx),
>+ .pcs = sm8350_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sm8350_ufsphy_pcs),
>+ },
> .clk_list = sdm845_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
>@@ -673,14 +682,16 @@ static const struct qmp_phy_cfg sc8280xp_ufsphy_cfg = {
> static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
> .lanes = 2,
>
>- .serdes_tbl = sdm845_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(sdm845_ufsphy_serdes),
>- .tx_tbl = sdm845_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(sdm845_ufsphy_tx),
>- .rx_tbl = sdm845_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(sdm845_ufsphy_rx),
>- .pcs_tbl = sdm845_ufsphy_pcs,
>- .pcs_tbl_num = ARRAY_SIZE(sdm845_ufsphy_pcs),
>+ .tbls = {
>+ .serdes = sdm845_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sdm845_ufsphy_serdes),
>+ .tx = sdm845_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sdm845_ufsphy_tx),
>+ .rx = sdm845_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sdm845_ufsphy_rx),
>+ .pcs = sdm845_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sdm845_ufsphy_pcs),
>+ },
> .clk_list = sdm845_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
>@@ -693,14 +704,16 @@ static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
> static const struct qmp_phy_cfg sm6115_ufsphy_cfg = {
> .lanes = 1,
>
>- .serdes_tbl = sm6115_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(sm6115_ufsphy_serdes),
>- .tx_tbl = sm6115_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(sm6115_ufsphy_tx),
>- .rx_tbl = sm6115_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(sm6115_ufsphy_rx),
>- .pcs_tbl = sm6115_ufsphy_pcs,
>- .pcs_tbl_num = ARRAY_SIZE(sm6115_ufsphy_pcs),
>+ .tbls = {
>+ .serdes = sm6115_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sm6115_ufsphy_serdes),
>+ .tx = sm6115_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sm6115_ufsphy_tx),
>+ .rx = sm6115_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sm6115_ufsphy_rx),
>+ .pcs = sm6115_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sm6115_ufsphy_pcs),
>+ },
> .clk_list = sdm845_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
>@@ -713,14 +726,16 @@ static const struct qmp_phy_cfg sm6115_ufsphy_cfg = {
> static const struct qmp_phy_cfg sm8150_ufsphy_cfg = {
> .lanes = 2,
>
>- .serdes_tbl = sm8150_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(sm8150_ufsphy_serdes),
>- .tx_tbl = sm8150_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(sm8150_ufsphy_tx),
>- .rx_tbl = sm8150_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(sm8150_ufsphy_rx),
>- .pcs_tbl = sm8150_ufsphy_pcs,
>- .pcs_tbl_num = ARRAY_SIZE(sm8150_ufsphy_pcs),
>+ .tbls = {
>+ .serdes = sm8150_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sm8150_ufsphy_serdes),
>+ .tx = sm8150_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sm8150_ufsphy_tx),
>+ .rx = sm8150_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sm8150_ufsphy_rx),
>+ .pcs = sm8150_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sm8150_ufsphy_pcs),
>+ },
> .clk_list = sdm845_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
>@@ -731,14 +746,16 @@ static const struct qmp_phy_cfg sm8150_ufsphy_cfg = {
> static const struct qmp_phy_cfg sm8350_ufsphy_cfg = {
> .lanes = 2,
>
>- .serdes_tbl = sm8350_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(sm8350_ufsphy_serdes),
>- .tx_tbl = sm8350_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(sm8350_ufsphy_tx),
>- .rx_tbl = sm8350_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(sm8350_ufsphy_rx),
>- .pcs_tbl = sm8350_ufsphy_pcs,
>- .pcs_tbl_num = ARRAY_SIZE(sm8350_ufsphy_pcs),
>+ .tbls = {
>+ .serdes = sm8350_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sm8350_ufsphy_serdes),
>+ .tx = sm8350_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sm8350_ufsphy_tx),
>+ .rx = sm8350_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sm8350_ufsphy_rx),
>+ .pcs = sm8350_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sm8350_ufsphy_pcs),
>+ },
> .clk_list = sdm845_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
>@@ -749,14 +766,16 @@ static const struct qmp_phy_cfg sm8350_ufsphy_cfg = {
> static const struct qmp_phy_cfg sm8450_ufsphy_cfg = {
> .lanes = 2,
>
>- .serdes_tbl = sm8350_ufsphy_serdes,
>- .serdes_tbl_num = ARRAY_SIZE(sm8350_ufsphy_serdes),
>- .tx_tbl = sm8350_ufsphy_tx,
>- .tx_tbl_num = ARRAY_SIZE(sm8350_ufsphy_tx),
>- .rx_tbl = sm8350_ufsphy_rx,
>- .rx_tbl_num = ARRAY_SIZE(sm8350_ufsphy_rx),
>- .pcs_tbl = sm8350_ufsphy_pcs,
>- .pcs_tbl_num = ARRAY_SIZE(sm8350_ufsphy_pcs),
>+ .tbls = {
>+ .serdes = sm8350_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sm8350_ufsphy_serdes),
>+ .tx = sm8350_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sm8350_ufsphy_tx),
>+ .rx = sm8350_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sm8350_ufsphy_rx),
>+ .pcs = sm8350_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sm8350_ufsphy_pcs),
>+ },
> .clk_list = sm8450_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sm8450_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
>@@ -790,16 +809,40 @@ static void qmp_ufs_configure(void __iomem *base,
> qmp_ufs_configure_lane(base, tbl, num, 0xff);
> }
>
>-static int qmp_ufs_serdes_init(struct qmp_ufs *qmp)
>+static void qmp_ufs_serdes_init(struct qmp_ufs *qmp, const struct qmp_phy_cfg_tbls *tbls)
> {
>- const struct qmp_phy_cfg *cfg = qmp->cfg;
> void __iomem *serdes = qmp->serdes;
>- const struct qmp_phy_init_tbl *serdes_tbl = cfg->serdes_tbl;
>- int serdes_tbl_num = cfg->serdes_tbl_num;
>
>- qmp_ufs_configure(serdes, serdes_tbl, serdes_tbl_num);
>+ qmp_ufs_configure(serdes, tbls->serdes, tbls->serdes_num);
>+}
>
>- return 0;
>+static void qmp_ufs_lanes_init(struct qmp_ufs *qmp, const struct qmp_phy_cfg_tbls *tbls)
>+{
>+ const struct qmp_phy_cfg *cfg = qmp->cfg;
>+ void __iomem *tx = qmp->tx;
>+ void __iomem *rx = qmp->rx;
>+
>+ qmp_ufs_configure_lane(tx, tbls->tx, tbls->tx_num, 1);
>+ qmp_ufs_configure_lane(rx, tbls->rx, tbls->rx_num, 1);
>+
>+ if (cfg->lanes >= 2) {
>+ qmp_ufs_configure_lane(qmp->tx2, tbls->tx, tbls->tx_num, 2);
>+ qmp_ufs_configure_lane(qmp->rx2, tbls->rx, tbls->rx_num, 2);
>+ }
>+}
>+
>+static void qmp_ufs_pcs_init(struct qmp_ufs *qmp, const struct qmp_phy_cfg_tbls *tbls)
>+{
>+ void __iomem *pcs = qmp->pcs;
>+
>+ qmp_ufs_configure(pcs, tbls->pcs, tbls->pcs_num);
>+}
>+
>+static void qmp_ufs_init_registers(struct qmp_ufs *qmp, const struct qmp_phy_cfg *cfg)
>+{
>+ qmp_ufs_serdes_init(qmp, &cfg->tbls);
>+ qmp_ufs_lanes_init(qmp, &cfg->tbls);
>+ qmp_ufs_pcs_init(qmp, &cfg->tbls);
> }
>
> static int qmp_ufs_com_init(struct qmp_ufs *qmp)
>@@ -886,25 +929,12 @@ static int qmp_ufs_power_on(struct phy *phy)
> {
> struct qmp_ufs *qmp = phy_get_drvdata(phy);
> const struct qmp_phy_cfg *cfg = qmp->cfg;
>- void __iomem *tx = qmp->tx;
>- void __iomem *rx = qmp->rx;
> void __iomem *pcs = qmp->pcs;
> void __iomem *status;
> unsigned int val;
> int ret;
>
>- qmp_ufs_serdes_init(qmp);
>-
>- /* Tx, Rx, and PCS configurations */
>- qmp_ufs_configure_lane(tx, cfg->tx_tbl, cfg->tx_tbl_num, 1);
>- qmp_ufs_configure_lane(rx, cfg->rx_tbl, cfg->rx_tbl_num, 1);
>-
>- if (cfg->lanes >= 2) {
>- qmp_ufs_configure_lane(qmp->tx2, cfg->tx_tbl, cfg->tx_tbl_num, 2);
>- qmp_ufs_configure_lane(qmp->rx2, cfg->rx_tbl, cfg->rx_tbl_num, 2);
>- }
>-
>- qmp_ufs_configure(pcs, cfg->pcs_tbl, cfg->pcs_tbl_num);
>+ qmp_ufs_init_registers(qmp, cfg);
>
> ret = reset_control_deassert(qmp->ufs_reset);
> if (ret)
--
With best wishes
Dmitry
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